html {
  width: 100%;
  height: 100%;
}
html body {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}
html body header {
  line-height: 44px;
  text-align: center;
  font-size: 18px;
  background-image: -webkit-linear-gradient(top, aqua, #e468f9, skyblue);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
html body main {
  flex: 1;
  overflow-y: scroll;
  overflow-x: hidden;
  background: url("../../assets/imgs/advertisement-bg.jpg") no-repeat center / cover;
  position: relative;
}
html body main .jianshen #Admin {
  position: relative;
}
html body main .jianshen #Admin #demo {
  animation: move 1.75s;
  width: 100%;
  position: absolute;
  top: 590px;
  color: #fff;
  text-align: center;
  font-size: 30px;
}
@keyframes move {
  0% {
    top: 500px;
    transform: scale(0);
  }
  25% {
    top: 450px;
    transform: scale(0.25);
  }
  50% {
    top: 630px;
    transform: scale(0.5);
  }
  75% {
    top: 590px;
    transform: scale(1);
  }
}
html body main .jianshen .timed {
  width: 120px;
  line-height: 40px;
  border: 1px solid #bbb;
  border-radius: 20px;
  background-color: #e468f9;
  color: #333;
  display: flex;
  justify-content: space-around;
  position: absolute;
  top: 75px;
  right: 20px;
}
